Lister cultivator



H. scHLArKTMANN LISTER ULTIvAToR Filed August 25, 1922 duo: nu'

Patented Dec. lll, 1926.

PATENT OFFICE..

HENRY SCHLATTMANN, 0F NEAR KEARNEY, NEBRASKA.

Lisanne oUL'rivATon.

Application filed August 23, 1922.

The invention relates to improvements in that class of lister cultivators generally lrnown as two row wheeled lister cultivators.

One of the objects of the invention is to provide new and improved means whereby, during the cultivating operation, shields forming` a part of the machine can be raised or lowered so as to protect the small plants in the row from being covered with dirt.

A further object is to provide plant shields having' improved means for actuating the same.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings,

Figure l is a rear view of a lister cultivator having the present improvements combined therewith.

Figure 2 is a verticaltransverse sectional view of the foot pedals and their' connections for attachment to the lister cultivator.

Figure 3 is 'a vertical longitudinal section showing a foot pedal and its connection.

Referring to the figures by characters of reference 2 designates the foot pedal, 3 the connecting rod, 1 the lifting rod, and 15 the chain, these parts with their connections constituting` the principal elements of the present invention.

The foot pedal 2 is bent at a right angle at its top, these bent portions being extended toward each other and adapted to work close together but out of contact. Eachfoot pedal is pivotally mounted adjacent the center upon a bolt 5 extending from a bar 6 so that the lower end a of the foot pedal will thus he moved back and forth when the Lipper portion thereof is thrust Jforwardly or backwardly. Bar 6 has downturned ends to which the pivot bolts 5 are connected. This Serial No. 583,907'.

bar straddles the branches of the foot supports 19 and 20 of a lister cultivator and is held thereto by bolts 16 and 17 which engage a clamping plate 18 beneath said supports.

The lifting rod 3 is connected to the foot pedal 2 at t-he lower end thereof as shown at 4 and is pivotally connected at 12 to the lifting bar 1, it being understood that the connections between these parts are loose so as to allow free movement thereof.

The lifting bar 1 is journaled in clamps 7 and 8 connected to the brace bar 11 of a lister cultivator. lt will be noted that the outer end ofthe lifter bar 1 is bent at greater angle than a right angle and is nor mally extended back horizontally over and toward the shield 21. The eXtreme outer end of this 'extension is provided with a hooked arm 13 for attachment to a chain 15. rlhis chain is securely connected to the shield at let near the point where said shield is attached to its arm 22.

In operation the foot pedals 2 stand normally vertically while cultivating and the weight of the shields 2l tends to maintain the pedals in these positions. By pushing forwardly upon a foot pedal the leverage exerted through the several parts connected thereto will enable the shield to be readily raised or lowered. Thus by providing a foot pedal for each foot and a shield connected to each pedal, said shield can be raised or lowered independently of each other. Consequently the shields can be operated to protect the small plants from dirt shifted during the cultivating of the plants and the shields can also be lifted so as not to injure high plants requiring no protection.

What is claimed is:

ln a lister cultivator the combination with a brace bar, foot rests, and a short bar connecting the foot rests, of a pedal lever fulcrumed between its ends on the short bar, a lifting rod, means for fastening said rod to the brace bar for rotation, an arm at each end of the rod, a shield, a flexible connection between the shield and one arm, and a rod connecting' one end of the pedal lever to the other arm of the lifting rod.

HENRY SCHJATTMANN. 

